From ab6fc8ed90488c443fdd6b524970c6490dd85296 Mon Sep 17 00:00:00 2001
From: David GAILLETON <david.gailleton@posteo.net>
Date: Thu, 12 Mar 2026 17:11:34 +0100
Subject: [PATCH] module 9 ex1

---
 09/ex1/alien_contact.py | 53 ++++++++++++++++++++++++++++++++++++-----
 1 file changed, 47 insertions(+), 6 deletions(-)

diff --git a/09/ex1/alien_contact.py b/09/ex1/alien_contact.py
index 9ef403a..a852830 100644
--- a/09/ex1/alien_contact.py
+++ b/09/ex1/alien_contact.py
@@ -1,6 +1,8 @@
+from typing_extensions import Self
 import datetime
 from enum import Enum
 from pydantic import BaseModel, Field, model_validator
+import json
 
 
 class ContactType(Enum):
@@ -15,19 +17,58 @@ class AlienContact(BaseModel):
     timestamp: datetime.datetime
     location: str = Field(min_length=3, max_length=100)
     contact_type: ContactType
-    signal_strength: float = Field(le=0.0, ge=10.0)
-    duration_minutes: int = Field(le=1, ge=1440)
-    witness_count: int = Field(le=1, ge=100)
+    signal_strength: float = Field(ge=0.0, le=10.0)
+    duration_minutes: int = Field(ge=1, le=1440)
+    witness_count: int = Field(ge=1, le=100)
     message_received: str | None = Field(default=None, max_length=500)
     is_verified: bool = Field(default=False)
 
     @model_validator(mode="after")
-    def format_validation(cls):
-        pass
+    def format_validation(self) -> Self:
+        if not self.contact_id.startswith("AC"):
+            raise ValueError('Contact ID must start with "AC"')
+        if (
+            self.contact_type == ContactType.PHYSICAL
+            and self.is_verified == False
+        ):
+            raise ValueError("Physical contact reports must be verified")
+        if (
+            self.contact_type == ContactType.TELEPATHIC
+            and self.witness_count < 3
+        ):
+            raise ValueError(
+                "Telepathic contact requires at least 3 witnesses"
+            )
+        if self.signal_strength > 7.0 and not self.message_received:
+            raise ValueError(
+                "Strong signals (> 7.0) should include received messages"
+            )
+        return self
 
 
 def main() -> None:
-    pass
+    try:
+        with open("../generated_data/alien_contacts.json") as file:
+            data = json.load(file)
+            for contact in data:
+                try:
+                    ac = AlienContact(**contact)
+                    print(
+                        f"======================================\n"
+                        f"Valid contact report:\n"
+                        f"ID: {ac.contact_id}\n"
+                        f"Type: {ac.contact_type}\n"
+                        f"Location: {ac.location}\n"
+                        f"Signal: {ac.signal_strength:.1f}/10\n"
+                        f"Duration: {ac.duration_minutes} minutes\n"
+                        f"Witness: {ac.witness_count}\n"
+                        f"Message: {ac.message_received}\n"
+                        f"Is verified: {ac.is_verified}\n"
+                    )
+                except Exception as err:
+                    print(err)
+    except Exception as err:
+        print(err)
 
 
 if __name__ == "__main__":